FAN8303 데이터 시트보기 (PDF) - Fairchild Semiconductor

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FAN8303

2A 23V Non-Synchronous Step-Down DC/DC Regulator

Fairchild Semiconductor 

Electrical Characteristics

VIN=12V, TA= -40 to +85°C, unless otherwise noted.

Symbol

Parameter

Condition

VFB

RON_H

RON_L

ILKG

IPK

fOSC

VUVLO

fSHORT

DMAX

TON_MIN

VEN

VEN_H

IOFF

IQ

GCS

GEA

AVEA

ISS

TSD

Feedback Voltage

Upper Switch On Resistance

Lower Switch On Resistance

Upper Switch Leakage Current

Peak Inductor Current

Oscillator Frequency

Under-Voltage Lockout

Short Circuit Frequency

Maximum Duty Cycle

Minimum On Time

Enable Threshold

Enable Threshold Hysteresis

Supply Current (Shutdown)

Supply Current (Quiescent)

Current Sense Gain

Error Amplifier Transconductance

Error Amplifier Voltage Gain

Soft-Start Current

Thermal Shutdown Temperature

25°C, 5V<VIN<23V

VEN=0V,VSW=0V

VFB>0.3V

Rising VIN

VFB<0.3V

VEN=0V

VEN>1.6V; VFB=0.8V

Min.

0.58

315

4.2

25

1.2

Typ.

0.60

0.22

4

0

3.5

370

4.6

45

90

210

1.6

150

10

1.0

2

380

400

6

155

Max.

0.62

10

435

5.0

55

2.0

40

2.0

Unit

V

Ω

Ω

µA

A

kHz

V

kHz

%

ns

V

mV

µA

mA

A/V

µA/V

V/V

µA

°C

© 2008 Fairchild Semiconductor Corporation

FAN8303 • Rev. 1.0.0

5

www.fairchildsemi.com

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